He became inspired when he thought about fighting against cholera ordinary people .A, that, exposed to B, to which, exposed C, that, are exposed D, which, are exposed to
It takes us ________ hour or more to go to my hometown by ________ train.
Rather than ____ on a crowded bus, he always prefers ____ a bicycle.
. After class they will discuss the _____ to the study of physics.
By the end of 2007, about half a million people had flooded into the city, ____ up around 10 percent of its total population.
We must avoid _____ a bad impression on others in public places .